Smartphone shoppers who didn’t immediately upgrade to Apple's iPhone 6S when it launched in September can find some hefty savings during Black Friday 2015. But they’ll have to brave the crowds to take advantage of most of the deals.

Keep in mind that each retailer is offering a number of different deals depending on what plan you choose, as well as whether you trade in your older device. Before you rush out after Thanksgiving dinner for a new iPhone, here’s a closer look at what you can expect from major retailers.

Walmart

The discount superstore is serving up some iPhone 6S savings with a $100 discount as well as a $100 Black Friday gift card with iPhone activations starting at 9 p.m. on Thanksgiving Day. The deal is available only for AT&T and Verizon. The catch: The discount comes in the form of a $100 bill credit and the $100 gift card is valid only for future purchases. Shoppers can also find a 16GB iPod Touch for $165, a $30 savings, and a 16GB Wi-Fi iPad Mini 2 for $199, a $69 savings, starting 6 p.m. local time Thursday.

Best Buy

Starting Thanksgiving Day, if you’re willing to part with an iPhone 5 or newer, Best Buy will throw in a $200 store gift card in addition to the trade-in value of your old Apple smartphone when you buy any iPhone under a two-year agreement, lease or installment plan with Verizon, AT&T or Sprint. Best Buy is also offering a $100 savings on 64GB and 128GB iPad Mini 4 models, normally priced between $499.99 and $599.99.

Or if you’re in the market for a new computer, the 12-inch MacBook is available for $1,149.99, the 13-inch MacBook Pro is on sale for $1349.99 and the 27-inch iMac with Retina 5K display is on sale for $1,649.99, a $150 savings for each model. Best Buy will be open Thanksgiving from 5 p.m. local time until 1 a.m. It then reopens Black Friday at 6 a.m. local time.

Target

Starting 6 p.m. Thanksgiving Day, customers can purchase a 16GB iPhone 6S from Target for $149.99 or the iPhone 6S Plus for $249.99 under a two-year contract with Verizon, AT&T or Sprint -- a $50 savings. Alternatively, customers can opt for no money down and a $250 Target gift card through the activation of an equipment installment plan through the three carriers. The 64GB models of both devices are also on sale.

Customers looking to purchase the Apple Watch, starting at $349 for the Sport model, can also nab a $100 Target gift card with purchase. There are also various iPad gift card deals ranging from $80 to $150.

T-Mobile

The magenta-logoed carrier won’t have any iPhone deals on Black Friday. But if you’re willing to wait until 2:01 a.m. PST on Cyber Monday, it’s offering iPhone shoppers free memory upgrades. Customers who purchase a 16GB iPhone 6S or 6S Plus will be upgraded to 64GB storage. Buyers of the 64GB model iPhone 6S or 6S Plus will be upgraded to a 128GB model. The deal is available only until 11:59 p.m. PST Monday while supplies last.

EBay

On Thanksgiving Day, shoppers can grab a 16GB rose gold iPhone 6S for $629, or $20 off regular price. On Black Friday, the online auction website is selling a 64GB iPhone 6S in space gray, gold, rose gold or silver for $719, a $30 savings. Shoppers can also get their hands on an iPad Air 2 for $359.99, a $140 discount.

Sam’s Club

The warehouse dealer is also expected to serve up discounts on the iPhone 6S leading into Black Friday. But it won’t reveal exactly how much of a deal customers will get until its smartphone sale is unveiled on Thanksgiving via its website.